Bobbin support for filling replenishing looms



' Oct. 4', '1927.-

I 1,644,644 'E. c. BURNHAM v BOBBIN SUPPORT' FOR FILLING REPLENISHING LOOMS Filed March '19, 1927 ATTORNEY Patented Get. 4, 1927.

v hire era EZJVJARD, BURNHAM, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO 'DRAPER COR- PDRATION, HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE. i

BOBBEN' SUPIORT FOR FILLING REPLENISHING LQOMS. I U

Application filed March 19, 1927. sel-iai no. 176,709.

This invention relates to filling replenishing looms and is more particularly directed to the bobbin supports that are used insuch looms for maintaining the bobbin next to be transferred in the desired transferring position.

It is now the usual practice to provide, filling replenishing looms with a rotary hop-1 per for containing filling carriers which are progressively moved from time to time to transferring position. The hoppers of such looms usually comprise a rotary diskhaving means for engaging the heads of bobbins to move them to transferring position and the rotary disk is usually mounted upon astand having a circular flange which overlies the heads of the filling carriers in the hopper the greater portion of the periphery of the disk. Near the transferring position, however, the flange 1s cutaway, primarily for the purpose of permitting the filling carrier in transferring position ,to be transferred from the hopper to the shuttle, but usually the flange is omitted for a distance back of the leading filling carrier-to about a point adjacent thethird filling carrier in the hopper, or approximately so.

During the operation of the loom, it hap pens at times that the'filling carrier which is next to be moved to transferring position by rotation of the hopper may become displaced outwardly of the hopper, or it may become displaced during the rotary movement of the hopper upon thetransfer of the next preceding filling carrier. Should a filling carrier when in transferring position be not properly located, it is liable to be improperly transferred during replenishment and may, in some cases, cause breakage of parts.

An important feature of the present invention therefore consists in a filling carrier or bobbin support which serves to properly position the filling carrier for transfer and to insure such proper position of the filling carrier by movement of the bobbinsupport itself during transfer or by rotation of the hopper following transfer.

The invention and novel features thereof will best be made clear from the following description and the accompanying drawings of one good form thereof.

In the drawings:

of transfer. for rotary movement upon the stud 7 .and

effect replenishment of filling, this general type of loom. V.

Fig. 1 is a cross-sectional elevation of portions of a fillingv replenishing loom havl mg the present invention associated there:

with

Fig. 2 is a detached detail showing relation of parts duringtransfer of apropa erly located fillingcarrier; M t

Fig. 3 is a view similar to that of Fig. i

2, some of the parts being brokenflaw'ay,

showing more particularly the relation of I parts when during transfer the bobbin to be acter and construction and has mounted View onthe 11564 1! frame 1 may be ofiusual char-i 3 of which is provided with a flanged en- 2 closing a major part of the rotary ho r 5 but having an opening 6 near the point The rotary hopper 5 is mounted may be. provided with the usual= ratchet mechanism 8 and actuating means 9, for; causing rotation of the hopper. following each transfer, but. since such mechanism is not of the present invention and is now well understood in the art, the particulardetails thereof are unimportant.

Mounted upon the stud or dead shaft 10 is the transferrer 11, the lower portion of which is provided with a downwardly eX-.

tending arm 12 to which is pivotally connected at 13 the transferrer dog 14 adapted 7 to be engaged 'by a hunter 15 onithelay to. V

as usual in The lay 16 is provided with the usualshuttle box 17 for the reception of the shut- I box is provided with a bottom. opening. 19 for the passage of the filling carrier to be e ected durlng transfer. Theseparts, also,

are, or may be, of usual character and contle 18, and the shuttle as well as the shuttle i gage the headsof the bobbins, although any suitable means may-be employed for hold- 7 ing the filling carriers or bobbins in the hopper.

Extending rearwardly from the loom frame is the arm 21 which is provided with a bobbin guide 22, the upwardly extendlng portion of which is normally in the path of a filling carrier when the latter 1s 1n replenishing position and, as indicated n Fig. 1, the filling carrier next to be transferred rests against the bobbin guide. This, also, ma be of usual construction.

s hereinbefore indicated, the resent invention has to do more particular y with the bobbin support and its functional operation for positioning the filling carriers in the hopper to place them in proper transferring position 1' ative to the hopper. In the present instance of the invention, the hopper stand has pivotally connected thereto at 23 the bobbin support arm 24 which extends downwardly from the pivotal support 23 and has a laterally extending portion 25 provided with the bobbin support 26 which is of novel construction.

The swingin arm 24 is normally under the influence of a spring 2'7, Fig. 1, acting to maintain the swinging arm and bobbin supportin their normal. position, as indicated in Fig. 1, a position which may be accurately determined by. means of a stop 28 secured adjustably to the hopper support and adapted to engage a lug 30 on the swinging arm 24. i

As hereinbefore stated, the swinging arm 24 carries the bobbin support 26, which is of novel construction. The front edge portion 31 of the bobbin support 26 is inclined frontwardly and downwardly to provide a proper guiding surface for the bobbin during transfer, and, at the same time, enable the passage of the filling carrier or bobbin to causeniovement of the bobbin support rearwardly.

The bobbin support 26 has an upper bobbin supporting surface 32 which is preferably concentric with the rotary hopper, and extending rearwardly from the bobbin supporting surface 32 the bobbin support is provided with a. tail portion 33 which is connected to the bobbin supporting surface 32 by an incline 34, so designed that should a .filling carrier in the hopper be misplaced as the hopper moves the filling carrier towards transferring position, the filling carrier will ride upon the inclined surface 34 and be ushed in or positioned properly in the opper.

The curve 32 of the bobbin supporting surface, as hereinbefore stated, is concentric with the rotary disk and, as indicated in Fig. 1, of the drawings, the bobbin next to be moved to transferring position rests upon the bobbin supporting surface 32. The bobbin or filling carrier back of the bobbin next to lbe moved to transferring position is maintained at a correct distance from the center of the hopper by means of the flange 4 of the hopper stand until a feeding operation of the hopper during which this filling carrier or bobbin must pass across the space between the end of the flange 4 and the terminal rear end of the bobbin supporting strikethe gradually rising surface 34 during the feed movement of the hopper, with the result that the misplaced bobbin or filling carrier 20* will be lifted into thecorreot position in the hopper.

As indicated in Fig. 1, the bobbin next to be transferred should properly rest against the bobbin guide 22 and when properly positioned in the hopper it does not rest against the bobbin support 26, although it may happen at' times, owing to loom vibration, that such positioned bobbin for transfer may be displaced downwardly slightly, as indicated by the dotted lines 20**. I

The relation of parts during normal transferring operation is indicated more clearly in Fig. 2 wherein it will be noted that the bobbin in transferring position is being moved downwardly by the transferrer 11- and strikes the inclined front surface 31 of the bobbin support 26 thereby causing a rearward movement of the. bobbin support as a whole from dotted to full line position. As the bobbin support 26 moves rearwardlyunder the conditions noted, the bobbin sup porting surface 32 moves backwardly and downwardly. Should the bobbin next to be moved to transferring position, however, be displaced downwardly when the curved bobbin supporting surface 32 is moved rear-- wardly and downwardly, such bobbin will he at once returned to its proper position in thehopper at the completion of the trans ferring movement when the bobbin support 26 has assumed its initial position and the hopper is rotated.

Should it happen that the rotary disk has not moved the filling carrier next to be transferred into its proper transferring position against the bobbin guide, but yet-sufficiently near the guide to permit the transferrer to act upon thefilling carrier or bobbin, the transferrer will move the filling carrier or bobbin downwardly over the inclined surface 31 of the bobbin support and effect proper transfer. Should, however, the bob-- bin next to be transferred be very far from its proper transferring position, so that the i out doing any damage.

carrier next to be transferred assume an intermediate position between the two ust described, and such, for instance, as illustrated in Fig. 3, the transferrer 11 may strike the filling carrier 20 at its top portion in the manner indicated in Fig. 3, and upon downward movement of the transferrer the bobbin support 26 will be moved rearwardly an abnormal distance, as indicated by the dotted lines in Fig. 3, to permit the misplaced filling carrier to pass downwardly but yet not be transferred to the shuttle. As the bobbin support is thus moved rearwardly an abnormal amount, the downward movement of the bobbin will cause it to roll. around the upper edge portion of the incline 31, thus acting upon the bobbin support to move it rearwardly into substantially the dotted line position of Fig. 3.

From the construction described as one good practical form of the present invention, it will be noted that the bobbin supporthas a bobbin supporting surface substantially concentric with the rotary hopper on which the bobbin next to be moved to transferring position rests during the loom operation, so that said bobbin is maintained in proper position in the hopper. Rearward of the bobbin supporting surface 32 the bobbin support has a tail portion 33 connected with the surface 32 by an upwardly and frontwardly inclined portion 34: such that should the bobbin back of the one next to be moved to transferring position become displaced in the hopper, it will engage the upwardly and frontwardly inclined surface 34 as the hopper is rotated and cause the misplaced bobbin to be moved upwardly into proper position in the hopper and thereafter held in such position by the concentric bobbin supporting surface 32. The backwardly extending tail portion 33 of the bobbin support underlies the bobbin rearwardly of that next to be moved to transferring position to safeguard its displacement from the hopper. and the tail portion 33 when the bobbin support is moved rearwardly an abnormal amount, as indicated in Fig. 3, will underlie the flange a of the hopper stand.

What is claimed is:

1. In a filling replenishing loom, the combination of a rotary hopper for filling carriers, a bobbin guide against which a filling carrier rests when in proper transferring position, a bobbin support whichis displaced rearwardly by a filling carrier during transfer and having a bobbin engaging surface for maintaining a bobbin in the hopper as it is moved to transferring position and a backwardly extending tail the uppersurface Should the filling of which communicates with thebobbin engagingsurface by an incline extending upwardly from the tail to act upon a filling carrier as the" hopper is rotated to properly position the filling carrier in the hopper.

'2. In a filling replenishing loom, lie-coin" bination of a rotary hopper for filling carriers or bobbins, a bobbin guide against which a bobbin rests When in. proper transhaving a bobbin supporting surface on which the bobbin next to be moved to transferring position rests preparatory to its movement to transferring position, and an upwardly and frontwardly inclined portion rearward of the bobbin supporting surface to act upon a misplaced bobbin to move it into proper position in the hopper.

3. In a filling replenishing loom, the combination of a rotary hopper, a bobbin guide, a bobbin support mounted for rearward displacement by a bobbin during transfer, and having a rcarwardly extending portion provided with an inclined surface extending upwardly and frontwardly to engage a mis ferring position, a swinging bobbin support placed bobbin and move it into proper position in the hopper.

4:. In a filling replenishing loom, the combination of a rotary hopper, a front bobbin guide, a bobbin support mounted for rearward swinging movement by a bobbin during transfer, and having a bobbin supporting surface concentric with the rotary hopper on which the filling carrier next to be moved to transferring position rests and by which it is maintained in proper position in the hopper, and a rearwardly extending tail connected to the bobbin supporting surface by an inclined portion leading frontwardly and from the tail upwardly to the bobbin supj porting surface to engage and properly position a misplaced bobbin in the hopper as it is moved towards transferring position.

' 5. In a filling replenishing loom, the combination of a rotary hopper, a front bobbin guide, a bobbin support mounted for rearward swinging movement by a bobbin during transfer, and havinga bobbin supporting surface concentric with the rotary hopper on which the filling carrier next to be moved to transferring position rests and by which it is maintained in proper position in the hopper, a downwardly and front-- wardly inclined end extending from the bobbin supporting surface, and an inclined portion leading frontwardly and upwardly to the bobbin supporting surface to properly position a bobbin in the hopper as it is moved towards transferring position.

6. In a filling replenishing loom, the com bination of a rotary hopper, a bobbin guide, a bobbin support mounted for rearward displacement by a bobbin as it is transferred and having a bobbin supporting surface by which the bobbin next to be moved to transferring position is maintained in proper position in the hopper, an inclined end opposite the bobbin guide leading downwardly and front-wardly from the bobbin supporting surface, and an inclined portion extending downwardly and rearwardly from the bobbin supporting surface for positioning a bobbin in the hopper on relative movement of the hopper and bobbin support. 10

EDWARD o. BURNHAM. V 

